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Finding the Fourth Proportional to 328,930.88, 493,546.72 and 178,946.40

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Solution

The fourth proportional to 328,930.88, 493,546.72 and 178,946.40 is: 268,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,930.88 : 493,546.72 = 178,946.40 : x
  2. Step 2: Convert to fraction form
    328,930.88/493,546.72 = 178,946.40/x
  3. Step 3: Cross multiply
    328,930.88x = 493,546.72 × 178,946.40
  4. Step 4: Simplify right side
    328,930.88x = 88,318,408,775.81
  5. Step 5: Solve for x
    x = 88,318,408,775.81/328,930.88
  6. Step 6: Final answer
    x = 268,501.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.